Coal-washer jig



Dec. 19, 1922.

L. MACKENZIE ET AL. COAL WASHER HG. FILED MAR.1B. 1922.

2 SHEETS-SHEET 2.

INVENTOR; c /fenz/e 01u/'5 Ma 9.0 By Wil/lm //bhards'an, Jl."

ToRNEK Patented lil? lt conn-WASHER' are. f

Application filed March 18, 1922.17'Seria1No. 544,863.

To aZZ-zbhow'tz't'ma/g/ concern.' Be it known that We, Louis MAGKENZin and WILLIAM Rioiinnnson, Jr., citizens of the United States, and residents orp Ensley,l Alahaina, have invented certain new and useful. Improvements in Cbal-VVasher Jigs7V ol'.l

which thefollowing is -a specification;

This invention relates to jigs tor-separating coal or other ininerals having different speciic gravities and particularly Vto ineans for reciprocating the plungers of vsuch jigs and to means'for uiding said plungers.`

Oneobject oft e invention is to provide a plunger havingv corner guide shoes which eating the same; 35

are adjustably secured to the plunger so that the saine can be adjusted tocoinpensate for wear. f y I Another Objectis .to provide means secured tothe plunger and arranged to reciprocate the klatter the plunger. Y

i further. object is to provide resilient rubbing strips which are adj ustably secured to the plunger so that they can be inoved outwardlyfrom time toftirne as they wear'` away.y Y y Other objects will be app-arentfroin the.

following description when read in connection with the vac'coinpanying drawings in i.

. j j ,1 ,1 l The rollers `38 are carrieiiby studs 12 which are Vprovided with threaded portionsi which proved plunger andthe means for recipror ig. 2 is a sectionalview on the line ,2f-2 of Fig.' 1 showing an improved driving inernber; i

F ig. 3ds ak detail of a wear ,platefsecuied .y

on which the wear plates 32 bear. The

' to the forked end of a connecting strap;

Fig. lis a diagrammatic viewy on `asiiiallei' scale showing a plunger mounted ina con-` ventionaliorin of a coal. washer y Fig. 5 a horizontal ksection on the line y5*-5 otltigl; i

lig. 6l is a perspective view ot one oflthe corner O'uide shoes secured to the plunger g F ig. ways secured tothe corner of the plunger the plunger cell. i

land also to assist in guiding y connecting strap carries a roller;38 which is.

, 1 is a vertical section through they cell of a coal washer jig showing ouryini-y .surface through the conduit 50.

is a perspective view of one of the .y -8.,is a perspective View showing one of the rubbing strips and the plate by v.which it is adjustably securedfto the pluiiger.

` lteferring'irst toll ig. l thejig 10 is of .any usual o r suitable construction and is pi'odriving meinber 16 which isikeyed or other-- .wise secured to a driving shaft 18, carried in suitable bearings 20seoure`d toa riin y22, of

A pair of upright conne'eting'straps Mare .secured `by bolts 26 to the bottoni plate 2S ofA theplunger` 14C. These straps are forked yat their upper ends 30 s o that they straddle the driving shaft 18,-and` are provided with ivear,plates ,32, Fig; 3, which aresecurcd by suitable bolts 34 said bolts passing through ears formedv 'on the wear plates.y `lf2-ach Yarranged to ride in a. cain groove l() yfoinied .in the driving. ineinber 1G. Thesegrooves ,are eccentric to the axis-,of the drive, shaft ed and that their upper ends will be guided on the shaft 18 bythe wear plates 32 secured to the forkedk portions of said straps.k

and clamped in placeby suitable lock nuts 16. To the outer end oteachk stud is secured/a grease cup 48. by which suitable lubricant can `be introduced kto the bearing` 'grease or :oil c ups 52 arecarriedby brackets .54 toi lubrieate the portion of the shaft 18 brackets .54 are pro-vided with ears 56 rsecured to one another by a block 58 which is fastened byinieans of through-boltsGO.

This holds the straps Z41- in spacedy relation lso that `the rollers 38 project the properdisa` tance intolthe grooves of the driving ineinber 16, suitable spacingwashers 62 being in terposed between theinnersurface 'of each erica; g,

videdwith a cell 12 within which the plunger' vv111- `islniounted for vertical reciprocatoryi ,'18, ytheretore as the latter is rotated it is clear that tliec'onnecting straps .will beijecipi'ocat# Similar.

strap it and the adjacent surface of the driving member 16.

`The plunger cell 12 is substantially square in plan and is provided near its lower end with a lining 64 of such length that the plunger co-operates therewith throughout its stroke. At each corner the rplunger cell is provided with a brace 66 ther-angular ianges 68 ktting flush against the inner surface ofthe cell and being rigidly secured thereto by means of bolts 70; ears T2 being provided at the lower ends of the braces as shown clearly in Fig.V 7L :The inner surface of the braces are of arcuate formation forming curved guidewayst. The plunger- 'le is provided at its corners with guide shoes 76 :shaped to nicely fit theways 74. These shoes have horizontal portions 78 f which are slotted at 80 for the reception of bolts 82by which they rareadjustably secured tol the plunger bottom. The guide shoesarealso formed with downwardly depending ears 83 which-are adapted to extend over the ends of resilient rubbing strips 84 toy liold the ends in place and to thus prevent leakage past the plunger asit moves down. The rubbing strips 84 are made of `suitable resilient material suoli as rubber belting or composition of canvas oruotlier fabric impregnated with rubber.l These strips are secured by bolts 86 to'platesy 88 which are* slotted `at 90 fory the Y reception of bolts 92; This bolt and slotl connection between the plates 88 and the plunger bottom permits of an adjustment w'herebythe rubbing strips can be moved outwardly te compensate for wear. This arrangement permits of a saving in the cost of maintenance of jigs of this type as the rubbing strips can rbe adjusted outwardly'to 'such extent that they are practically all used up before it is necessary to discard them.

downwardly as shown in Fig. l and their undersurfaces are practically in alignment with the lower edges of the ears S3 formed on the guide shoes.

From the above description it will be seen that the` plunger is guided bythe shoes 76 which ride on the ways 74, and by the' forked end 30 of the connecting Straps which ride` on the shaft i8. lt will he lurther understood that as the driving member i6 is rotated,` astraight up and` dowii'niove? pv'articul'arityl the Adetails of' the embodiment f ofzour` invention f shown", it'vr is not tobe construed that 'we' are limitfedtlthe'reto-as The outer portions 94 of the plates 8S are 'bent changesin arrangement and substitution of equivalents may be made by those skilled in the art without departing from he invention as defined in the appended claims.

`What we claim ist l l. ln an apparatus of the class described, a substantially rectangular plunger having curved corner guide shoes secured thereto, hiredv ways secured to the cell in which said plunger operates arranged to co-act with said corner guide slices, a driv'e shaft carrying a grooved driving member, a strap carn ryilng meansforengaging the groove in said driving member, said strap `being forked at its upper end to engage said shaftand with said guide shoes serving to guide said plunger so that a straiglitline motion is imparted thereto by said driving` member.

2. In anapparatus of the class described, a substantially rectangular plunger having curved corner guide shoes adjustably secured thereto, fixed ways secure/dto the cell iii which said plunger-operates arranged to coact with said guide shoes, a shaft carrying Aa driving member for reciprocating said plunger, said member having a cam groove formed therein and astrap guided at one end by said shaft and secured at the opposite end to said plunger and having secured `thereto a member adapted to ride in said co-act with said guide shoes,'a shaft carrying a driving membervfor reciprocating saidy plunger. said member having identical eccentric grooves formed in the opposite sides thereof, a pair of straps ferire-don their upper ends andv engaging said shaft on opposite sides of said driving niembeig'ni'eans carried by said straps engaging saidY eccentric. grooves for tran'emitting` motion to said plunger.

4. 'In an apparatus of the class described, a cell, a plungerl guided. therein, a drive -shaft and means for imparting a straight line motion to said plunger comprising a strapsecured at one end to saidv plunger and forked at the other end to-slidably engage said shaft and a driving member secured to said shaft having an eccentric groove formed therein and means carried by said strap and running in said groove.

5. In'an apparatus ofv the class described,

'a plunger having curved corner guide shoes,l lmeansfor adpistably securingr said guide shoes to saidypluiiger, resilient rubbing strips andv means for adjustablysecuring said rubbing strips yto'said plunger.

6. In an apparatus of the class described,

a plunger having curved corner guide Shoes, extend under and are held down by said ineans for adjustably securing said guide ears, plates having downwardly inclined shoes to said plunger, resilient rubbing portions to which said rubbing strips are strips, slotted plates to Which said rubbing Secured and means for adjustably securing strips are secured and bolts for adjustably said plates to said plunger. l5 securing said Slotted1 plates to the plunger. In Witness whereof We have hereunto 7. ln an apparatus of the Class deseribed, signed our names. a plunger having curved corner guide shoes having downwardly extending ears formed LOUIS MACKENZIE.

, 10 thereon, resilient rubbing strips Whose ends WILLIAM RICHARDSON, JR. 

